Compilare: In file included from /usr/include/c++/4.8/cassert:43:0, from user.cpp:5: user.cpp: In member function ‘void info::add(int)’: user.cpp:68:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] assert(c <= f.size()); ^ user.cpp:69:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(c == f.size()){ ^ user.cpp: In function ‘int main()’: user.cpp:102:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("egal.in","r",stdin); ^ user.cpp:103:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("egal.out","w",stdout); ^ user.cpp: In function ‘int read()’: user.cpp:42:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] inline int read(){int x;scanf(" %d",&x);return x;} ^